Coffee-urn apparatus



May. 31, 1927.

COFFEE URN APPARATUS Filed A1121. l, 19232 Q N 5: A a m 2 Sheets-Sheet 1f Zz 'uhm 21 UI 5.7.58 Z5 1,630,904 H. L. RIV-:CKARD Patented May anisa?.

HENRY kL.`interesan,- ory NEW? vYoaii,+1\I.-r., Assienoia To sLossPERFECT corran MAKER, INC., OF NEW YAORK, vN; Y., A CORPORATON OF N EWYORK.

y corran-URN APPARATiIs.

' 'Afpiieatioinea august 1, 192s. seriarim. 62574368.`

Thisinvention relates to a coeenrn apparatus and particularly-to Vthatltypeoffapparatus for making coffee 'as-usually employed in hotels,Yrestaurants and, similar 6 pla/ces where codec is made in largequantitiesV or on a commercial scale; In this type of apparatusas'li'eretofore constructed it has been customary to 4employ two vorvmore coffee urns with intermediatelieaters orbioilersfand" suitableconnections between the coffee urns and boilers at the upper portionsthereof `for transferring the necessary waterfrom the lintermediateheatersv or boilers to the'colfee urns in the .process of' makingthecoffee. 1: Much difficulty has beenheretofore experi-A enced, however,with this' arrangement due" to the fact that the hot water as taken fromthe top ofthe heater or boiler is unecessarily mixed with more or lesssteam making it im-V possible to determine exactly liow much water is4'supplied to the coffee urn in any vparticular operation. "As will beVreadily understood, in order to make the coffee satisfactorily there. isa :predetermined relationship 'between' the quantity of. water suppliedand the amount ofec'iffee'V enriployed. I 'am Y also aware thatheretofore in various'forms of apparatus for makingcoffee of the type towhich this invention relates it'has beencustomary tol employ `Vdevices*for transferring the coffee from the coffee Vreceptacl'evt'o the coffeeretainer to obviate the necessity'of manually pouring andrepouringthejcoffee in tlie operationy of making thesame. Now'the'object lof my present invention is the provision'of'an apparatus inwhich the difficulties hereinbefore enumerated are over-` come byemploying an attachment associated Y with the devices for repouring thecoffee, the parts lbeing so constructed that' the hot water is takenfrom the bottom of the heater or boiler instead of from the top thereofand' a predeterminedl 'quantity thereof! is' 'trans' ferred from theheater vorlooiler tothe coffee K n n p Y connected Ito anysuitable valveor ,cock l? urn by the devices f or repouri'ng'the coffee v'and when thenecessary or required amount of water has -been transferred to theurntheVrepouringv devices may beemp-loyed Vin the customary 'manner to preparethe beverage to 5o i quired in any particular instance,` as will behereinafter more-particularly described.`

ln the drawing: l f f i Fig. 1 is an elevation and partial vertical 53*section illustrating a `coffee urn apparatus iria. 2. Y

the desired strength or in themanner re-` made in accordance withpresent` inven-l .Figz'Q is an elevationvon an enlargedscale(Y'illustrating tlievpumpand the'switchdevice Y .for controihngtlie motorto drivethe'pump 'eo yfora predetermined period, and

Fig 3 isa plan of the parts showny y y reference to the drawing it willvbe 'seen i that the coifee urn apparatus made in ac'- cordance with thisinvention preferably conii prisescoffee urns designated by 10 and 1'1land an intermediateV boiler or heater indi-` cated' at 12. It willbe'und'erstood, how'- A ever, VVthat this arrangement, `namely the .fai

number of urns and the intermediate vboiler isonly illustrative as anynumber ofrurns with boilers or heaters intermediate of' the samemay beemployed. yThe coifee urns are: similarly constructed. In the drawingthe "7.3 outer casing of Vone'of the coffee urns is indii i Y'Vcatedi-at 13 and this urn is fitted'with a rei movable cover 1erV andis suitably mounted "on legs 15 oriany desirablel support. Y The cover17 yand lniountedi'ipoii legslS.

I nteriorly the coifee urns' are provided with aco'ffeerecentajcle 19providing a chamber 2O for thev coffee. This cofee receptacle '85e' Y 19is's'uitably spaced fromthe bottom'wallv 21er thefurn so as tov providela `water chamber 22 between theseparts and .thev outer casing offtheurn.'` .Att-he bottom of thecoffee receptacle there 'is a pipe fitting23 connectedl tok which is a pipe 2a' lying within 'the water chamber22. On the other side vof the bottom wall`21 there isy a pipe Q5;V Thepipes 24 and. 25 are suitably con'- nected to each other and to thebottoni wall at an opening therein so as to makefa 'con-l ntinuouspassage through these pipes froin' the coffee receptacle by `way"of vthe pipe fitting 23. The `other end of the pipe'i25 is to whichisalso connected va pipe 28Y leading lto Vthe leg of a T connection 29..Connected p other side of the T 29y is connected by pipeA Y 3.5VKleading to the suction finletof a pump 'lhis'pump `may be of desiredtype igen.

li'iii,

but is preferably yof thesarne construction as is shown and described inLetters Patent No. 1,249,818, December 12, 1917. r1`he discharge end,ofthe pump 36l is connected by a pump 37 'to an 'elbow 38 which issupported by a bracketv 39 suitablyconnected to the outer casing oftheurn 11. The outlet 40 from the elbow 38 is connected to the lower endofa gage glass 41 Vlwhich at its Vupper end is similarly connected tothe inlet `42of an elbow 43.; The outlet from the elbow 43 connected toa pipe 44l which` extends between the same and the outer casing of Y theurn 1l. v "44' is connected to ay jointed pipe 5() of the' Interiorlyofthe urn thel pipe same construction as shown anddescribed in LettersPatent No. "1,473,440, dated Novem-k ber 6,' 1923. The hinged pipe joint50 is connected to a pipe 45, the orifice of whichis indicated at 46,terminates approximately centrally immediately below the cover memberv47 of a distributor 48, and-suitably secured to the upturned `end ofthev pipe there is a disk 49A for preventing` the wateras-4 dischargedfromV the pipe fromdripping to the centralv portion of thefvdistributor.In

the use of this distributor the liquid as de livered ,from the pipe 45isl caused to vflow over the inner surfaceof the cover 47 to the outerperiphery of the distributor andv thence inwardly toward theCentralpOrtiOn of the distributor so'as to.. provide Van evendistributionfor the liquid as the same passes through the' openingsprovided therefor in the bottom wall ofthe distributor to descend intothe coffee bag 51 or other receptacle containing the ground coffeeandsuitably supported at the upper portion of the container Theelbow 43and the pipe44 may bealso connected to. the, heater 42 by vmeans of i abracket 52 extending between'the shell of the heater and the elbow 43.rfhis bracket., however, performs no function vexcept thatv of a braceto assist yin maintaining the parts coffee may be withdrawn from thechamber 20in the receptacle 19. lEach coffee urn may'alsorbe providedwith a gas burner 56 or other suitable devices for heating the V'sameand in like manner the boiler 12 may be provided with a gas or otherldicated at 57.

The vmotor by which the pump 36 is burner `inrdriven is indicated at 58.rhe motor shaft 59 is provided with a worm 60 meshing with a worm gearV61 mounted on the pump shaft -62 in order to drive the pump by themotor.

The motor shaft is fittedwith a continuation indicated atl 63 andprovided with a worm 64 which meshes ywith a gear 65r mounted i freelyon an auxiliary shaft 66.

The gear 65 is connected to aY pinion V67 which is also mountedffreelyon'l-the auxiliary shaft and meshes with a geary 68 mounted freely on aswitch shaft 69. As.. sociated with the gear 68i's a 'pinion 70 pmeshing with a gear 71 also freely mounted on the auxiliary shaft 66.The gear71 has associated therewith aV pinion72 which also turnsfreelyon the shaft'66 andjmesheswith a 'gear 73 secured to the* switchshaft 69. The auxiliary shaft 66 and the switch lshaft* 69 Ymay besuitably journaled .in spaced plates 74, 75' made'of insulating or'other similar material and' .connected and maintained in theirrelativepositions bybrac'kets 76 or otherwise.

78 fixed in such a posit-ion as tovbe., spaced from but substantiallyparallel to the switch shaftj The. switch shaft isalsog'provided with aVpin 79 which extends transversely throughl the same and projectstherefrom suiiiciently far to Contact with` the pin 78'. Exteriorly of asuitable casing which A'is shown in dotted lines' in Fig. 2 the switchshaft is provided with ay Vbutton 80 fitting On the switchshaft 69 is acollar-'77. "This collar is mounted to turn l: Yfreely 'on the shaft andis fitted with a pin over the end of the shaft and maintained inposition thereon by a screw 81 or otherwise.

rlhe button is provided with 'a boss 82 having an aperture therein forthe reception" of the outer end Vof the -pin78 so that the collar'77 maybeV turned a( predetermined portion of a revolution "by imparting asimilar movementmanually to the button 80.

lll() The motor is suitably connected in' aA cirlcuit provided with aswitch for opening and closing the motor circuit to turn .off or ap- Yply lthe power to the motor. j The Yswitchf mechanism is associated withthe switchf" shaft andthe parts immediately hereinbe-V One of theterminals of. V the switch is indicatedat 83 and Vto lthis one f foredescribed.

of the lead wires 84 of the motor circuit 1s suitably connected.V Theswitchy includes a springblade /ofsuitabie conductive mate-'1 rialindicatedl at 85.` YOne end of thespring l blade ,85. is' connectedr tothe terminal 83: In `a suitable position thev svp-ring bladevv is"provided. with an angular bend 86'ada-pted normally to .lie .within anangular notch 87 provided therefor inthe collar 77 so that Athe free endof lthe lblade is disconnected from the other motor terminal indicatedat 88 and'securedl to which is a leadwire 89. These partsfare sodesigned as to act-nate the spring blade by a partial revolution of thecollar 77'to cause Vthe free end of the spring blade to contact withtheswitch'ter'- minal 88-to thereby close the circuit to theV motor.l l

The switch-mechanism hereinbefore'de'- scribedis the same as. thatillustratedvand described in Letters Patent No.` 1,482,581,

dated February 5, 1924, and as will now be apparent the switch is in anormally opened position `when thek angularvbend in e the spring blade85 ,lies within the angular notch in the collar77. 1. It willgfurthermorebe apparent that by imparting: a partial revolution to thecollar 77pb'yqturning the button 80the spring bla-de willbe moved toContact with the terminal 88to1 close the motor circuit and irrespectiveof the amount` to which thecollar77 is turned the motor circuit will beclosed.andsubsequently after the motor is set in operation the switchshaft will be turned 'through' the reductiongearing to cause the pin 79to eventually contact with the pine 78 andto then continue the movementof the collar: 77 until ithas completed onev revolution when the springblade willV automatically return to-its normal position and open themotor circuit to y A stop the` motor.

The parts of the apparatus and the manvner of `connecting the samebetween `the boiler Vor heater .i12 and the urn 10 are precisely similarto those'hereinbefore described as connecting the boiler or heater 12with the urn 11. .These kparts as shown in Fig.

" 1 of the drawing are brieflyv a pipe 91 lead# Ying-from the.receptacle for. the coffee in the urn 10 and a `valve 92 connecting thesame to a pipe 93 and a T 94 which bythe pipe 95 and valve 96 isconnected by a pipe 97 to ,theb'ottom wallofthe boiler or heater 12.TheT 94 by a pipe 98 is connected to the suction inlet of a pump 99 andthe discharge from the pump is ,connected .by a pipe 100'to an elbow 101secured to the lower end of a gage 102,v the upper end` of which isconnected to an elbow 103and by a pipe 104 to the interior kof theyurn.v A bracket or brace 105 similarv to the bracket 52 may beyemployed to complete the .Connection` between the exterior or outercasings of the urn 10 and the boiler orlheater' 12. This bracket 105,however, performs no other function than that of a brace. The motorassociated with the-pump 99 is indicated at 106. l

.In the operation of this apparatus, as-

suming that the ground coffee has beenboiler or heater through the` pipe32, Vthe valvei31,uthe- ,29, the elbow 38, Ithe vgage tube 41, the.elbow 43, the pipe 44 and parts associated therewith to' lthedistributor 48 from Y,whichv the` liquid will flow to and through theground coffee inA the coffee bag or other support, and thencet'o thechambery 20 in the receptacle 19. This operation may be repeated,depending upon thequantity of coffeeemployed'to supply the necessary ivwater inimaking the beverage. Then ifritis necessary or desirable torepour they cofteev l they valve' `31 isjclosedand thevalve 27 isf. f

opened. Then. by Lthe operationof the inotor one or any predeterminednumber.' of

times the liquid in the receptacle 19` 'will `be caused to'flowthroughthe pipes 24, 25,'thc

the pump 36, the elbow 38, the gage .glassy 41, the 'elbow 43 andthepipe and parts` associated. therewith to the interior of the urn. vItwillfurthermore be understood that by drawing the waterffr'om theybottom of the boiler or heaterit'is-possible by the? operation *oflt-he *pumpV :to1 determine l:with sufficient exactness the quantitylof'water tol be transferred to make certain olfmak-ing theA beverage`ofy 'theldesired consistency or` strength, 1 1

I claim as invention:V

1'. Ina coffee urn apparatusandin'combination with alcoffee urn andanassociated waterheater, afc'offee receptacl'erwithin thel y cofeefurn,:a pump, a connection from the? coffee vreceptacle tothe suctionof.thefp'unip,l

a-eonne'ction from Ithe water heater to the suction of thepump, aconnection from the discharge ofthe pump tothe top ofthe coffee`receptacle, and devices for actuating the pump whereby-,thepumpis'utilized to transfer a predetermined quantity of'coffee 'from thecoffee receptacle from the bottom to theV top thereof 'and also t0transfer "a f l predetermined quantity of water from the lower end ofthe 'heaterl to thev top,l of the:

coffee receptacle.

2, 1n a'coffee lurn apparatus and in combination withva coffee urn andan associated water heater, a pump, means for operating `the pump, andconnections from the 'lower end of the heater and from the lower end.

of the coffee urn to the pump suctionand from the pump discharge totheupper por*- tion of the urnfor transferringa predeter mined quantityof Water' from the heater to the top of the urn and alsovforfcirculati'ng al predetermined quantity lofvv coffee.v from thebottom to the top of the urn.

3. In a coffee urn'apparatus andin com-y bination with' a coffee urn andan associated water heater, a pump,l means for operating v the pumpv forpredetermined periods, and connections from the lower end ofthe waterheater and from the lower .portion ofthe j` coffee receptacle of the urntothe pump suctionV and from the pump discharge to. the

' -from'the heater to the upper portion of. the

upper end of the coffee receptacle*fortransferring vpredeterriiined`quantities of water coffee receptacle and also for circulatingpredetermined quantities of coifee. from the bottom of the coffeereceptacle to the top thereof., Y v Y Y 4. In a coffee urn lapparatusand in com `bination with a coffee urn andan associated water 'heater7a. pump, a pipe* connection from the lower end ofthe water heater to thesuction ofthe pump,` a pipe'V connection from `the hottoniof the urn tothe suction ol the pump, means forcontrolling the'passage of a liquidthrough the said pi-pe coi'inectionsr` a'pipe lconnectionfrom the pumpdischarge tothe upperportion of theurn, andmeans.

for'Vr operating the pump during predetermined periodsfvor transferringa quantityof water from the lower end of the heater to the top ofthe urnand also for circulating` a quantity of coffee from the hottomof the urnto the top thereof.

5. ln acoflee u rn apparatus and in combinationwith a coffeeH urn and anassociated water heater, a.y vcoffeeY receptacle inV the urn, a pump' apipe line connection between the lower end of the Water heater and thepump suction, a pipe line connection" between the bottomof the coffeereceptacle in the, coifee urny and the pump suction, vmeans for sep'arately controlling the passage of a liquid through the said! pipe lineconnections, a

pipe line connection. from the pump ydischarge tothe upper portion ofthe coffee receptacle, and meansv for operating the pump predeterminedintervals of time for transferring predetermined 1 quantities 'of waterfrom the Vlower end of theV heater to the upper portion of thecoifeereceptacle and also for Circulating predetermined quantities of coffeefromvthe lower portion of the coilee c receptacle to the upper portionthereof.

6. In a coffee urn apparatus and' in conibinationpwith a coffee urn andan associated water heater, a coffee receptacle in the urn,.v, means forwithdrawing coffee from the coffee receptacle', a5 pump, a pipe lineconnection Vfrom the, lower endfofthefheater to the pump suction, avalvein the said 'pipe line charge to the upper portion ofthe kcoifee're-jceptacle, a motor yfor ydriving` the said pump,` and vmeans for closing`a circuit to the motor and automatically opening the circuit to stop themotor after the 'motor has run a prede-V termined period for operatingthe pump` during`- said period to either transfer a predeterminedquantity of water from the lower Y end of the heater to the Vupperportion ofl the coffee receptacle or yto circulate a predeterminedlquantity of coffee from the lower portion of the coffee-'receptacle tothe upperA portion thereof. v e Y Signedby me this 9th day of. July,1923;

- HENRY LRECKARD.

